Cubic inches to cubic centimeters (in³ to cm³) converter

What is a cubic inches to cubic centimeters converter?

A cubic inches to cubic centimeters converter is an online tool that turns a volume expressed in cubic inches (in³) into its equivalent in cubic centimeters (cm³), and back again. The cubic inch belongs to the imperial and US customary systems, while the cubic centimeter (often abbreviated “cc”) is part of the metric system. Because both units describe how much space an object occupies, the converter simply rescales the same physical volume from one measuring system to the other so you can compare figures that were originally recorded in different conventions.

How does the converter work?

Internally every value is reduced to a common base before being shown again in the unit you want. When you type a number of cubic inches, the tool multiplies it by a fixed factor to obtain cubic centimeters; when you type cubic centimeters, it divides by the same factor to recover cubic inches. The conversion is exact and reversible, so entering a result in one field instantly updates the other. The fields also accept related volume units (cubic feet and cubic yards on the imperial side, cubic millimeters and cubic meters on the metric side), which makes it easy to move between any pair of these volumes without a separate calculation.

The cornerstone of the conversion is the length of the inch. One inch equals exactly 2.54 cm, so one cubic inch equals 2.54³ = 16.387064 cm³, which is the factor the converter relies on.

Formula for conversion

To convert cubic inches to cubic centimeters, multiply by 16.3871:

$\text{cm}^3 = \text{in}^3 \times 16.3871$

To convert cubic centimeters back to cubic inches, divide by the same factor (or multiply by its reciprocal):

$\text{in}^3 = \text{cm}^3 \times 0.0610237$

If you start from cubic feet, first note that 1 ft³ = 1728 in³, so:

$\text{cm}^3 = \text{ft}^3 \times 28316.8$

Conversion table

The table below lists common cubic inch values together with their cubic centimeter equivalents, using the factor 16.3871.

Examples

Example 1: One cubic inch

Converting a single cubic inch to cubic centimeters uses the base factor directly:

$1 \text{ in}^3 \times 16.3871 = 16.3871 \text{ cm}^3$

Example 2: Two cubic inches

For two cubic inches, multiply the factor by two:

$2 \text{ in}^3 \times 16.3871 = 32.7742 \text{ cm}^3$

Example 3: From cubic centimeters back to cubic inches

Going the other way, 16.3871 cm³ should return exactly one cubic inch:

$16.3871 \text{ cm}^3 \times 0.0610237 = 1 \text{ in}^3$

Example 4: From cubic feet

A cubic foot is a much larger volume. Selecting cubic feet as the source unit and cubic centimeters as the target gives:

$1 \text{ ft}^3 \times 28316.8 = 28316.8 \text{ cm}^3$

Notes

• The abbreviation “cc” is just another name for cubic centimeter, so 16.3871 cc and 16.3871 cm³ mean exactly the same thing.
• The conversion is based on the exact definition 1 in = 2.54 cm; the 16.3871 factor is this value rounded for display.
• The converter is bidirectional, so you can enter a value in either field and read the matching result in the other.
• Engine displacement is one of the most common reasons to convert cubic inches to cc, since US engines are often quoted in cubic inches while the rest of the world uses cc or liters.

Frequently asked questions

How many cubic centimeters are in one cubic inch?

One cubic inch equals approximately 16.3871 cubic centimeters, derived from the exact relationship 1 in = 2.54 cm.

Is a cubic centimeter the same as a cc?

Yes. “cc” is simply an informal abbreviation of cubic centimeter (cm³); both refer to the identical volume.

How do I convert cubic centimeters to cubic inches?

Multiply the cubic centimeter value by 0.0610237, or divide it by 16.3871. For example, 100 cm³ is about 6.10 in³. You can also use our cubic centimeter to cubic inch converter.

How many cubic centimeters are in a cubic foot?

A cubic foot contains 1728 cubic inches, so it is roughly 28316.8 cubic centimeters.

Why might my conversion look slightly off?

Make sure the correct source and target units are selected before entering a value, since switching units re-scales any number already in the field. Small differences can also come from rounding the 16.3871 factor.

Can the converter handle decimals and very large numbers?

Yes. You can enter fractional cubic inches as well as large volumes, and the converter returns a proportional, precise result in either direction.